Colorado Gas Prices
Current average fuel prices for Colorado, sourced from the U.S. Energy Information Administration's weekly retail survey, plus a calculator prefilled with the local price.
Weekly price trend, regular gasoline
View regular gasoline trend as a table
| Week of | Price per gallon |
|---|---|
| Jun 1 | $4.198 |
| Jun 8 | $3.985 |
| Jun 15 | $3.950 |
| Jun 22 | $3.666 |
| Jun 29 | $3.563 |
| Jul 6 | $3.517 |
| Jul 13 | $3.722 |
| Jul 20 | $3.901 |
What shapes the price in Colorado
Colorado's fuel market is shaped by the geography of the Rocky Mountains. The state's primary domestic source is the Suncor refinery in Commerce City, just north of Denver, with additional refined fuel arriving via pipeline from Wyoming and the Texas Panhandle. A signature feature of Colorado and high-altitude mountain states is the prevalence of 85-octane regular gasoline instead of the 87-octane standard used in lower-elevation states. In addition, the Front Range non-attainment area requires strict summer ozone-control fuel formulations, which periodically cause supply tightness when local refining is disrupted.
U.S. retail gasoline prices follow a reliable seasonal cycle. Prices typically rise between February and May as refineries conduct scheduled seasonal maintenance (turnarounds) and switch production from winter-grade fuel to more expensive, low-RVP (Reid Vapor Pressure) summer blends designed to reduce ground-level smog in hot weather. Increased summer vacation driving further boosts demand. Conversely, prices typically soften following Labor Day as refiners transition back to lower-cost winter blends containing inexpensive butane, alongside lower cold-weather driving demand.
Calculate your fuel cost in Colorado
Calculator Parameters
This is an estimated default price. Automatic price detection only applies to visitors in the United States. Everyone else can select their own currency and enter a local price below for an accurate result.
Enter total travelers to split gas cost fairly.
Your Calculation Results
High Consumption (> 8.5 L/100km)- Total Fuel Needed (for this trip)
- 8.88 US gallons (33.6 liters total)
- Total Fuel Cost (for this trip)
- $34.62
- Cost breakdown per distance unit
- $0.557 per mile • $0.346 per km
Fuel economy in every unit
- L/100km
- 33.6
- MPG US
- 7.0
- MPG UK
- 8.4
- km/L
- 3.0
The fuel calculator above is prefilled with Colorado's current regular gasoline price. If your vehicle requires high-octane premium or runs on diesel, replace the default price with the corresponding regional price above to see your exact cost per mile and total trip fuel expense.
Calculate trip fuel costs from Colorado
Planning a driving route? See exact distances, vehicle consumption comparisons, and trip gas costs for routes connecting through Colorado:
Driving an EV instead?
Drivers operating an electric vehicle (EV) are not directly impacted by gasoline or diesel pump prices. Instead, EV charging costs depend on local residential and public electricity rates measured in cents per kilowatt-hour (kWh). To evaluate how electricity costs compare to gasoline in this region, use our EV versus Gas Comparator.
Open the EV versus gas comparatorLast updated July 24, 2026 at 8:38 AM UTC. Prices are refreshed from U.S. EIA weekly retail survey data.
Frequently asked questions
Colorado's high altitude means thinner air and lower atmospheric pressure inside engine combustion chambers, reducing the tendency of an engine to knock or ping. Historically, an 85-octane rating performs similarly at 5,000+ feet to 87-octane at sea level, though modern turbocharged engines still benefit from manufacturer-recommended 87+ octane.
Roughly one-third of Colorado's refined fuel is produced locally at the Commerce City refinery near Denver. The remainder is imported through interstate pipelines from Wyoming, Montana, and Texas Panhandle refineries.
Denver and the Front Range enjoy lower pump prices due to direct proximity to local distribution terminals. Mountain towns such as Vail, Aspen, and Steamboat Springs often post prices 40 to 80 cents higher due to mountain pass tanker trucking costs and limited station competition.
Premium gasoline has a higher octane rating (91 to 93 AKI), which prevents premature engine knock in high-compression and turbocharged engines. Producing high octane requires additional refinery processing steps such as catalytic alkylation and reforming, and retailers price it with wider retail margins, resulting in a consistent 50 to 70 cent premium over regular.
Price figures for Colorado are derived from the U.S. Energy Information Administration's (EIA) official retail survey, updated on a weekly schedule. Individual street-corner stations adjust their posted board prices daily based on wholesale rack spot price shifts.